Resist User to go back after Login

Question

In my application after login I am going into home page. But from home page if I press browser's back button again the system sending me to the login page.

How can I resist my user doing so. If they do press the back button while he/she is logged in, the system will resend him/her to that same page, not in login.

Answer 1

At the top of your Login.aspx page, add the following line to prevent browsers from caching the login page:

<%@ OutputCache Location="None" NoStore="True" %>

Then, in Login.aspx.cs, redirect to your home page if the user is already logged in:

protected override void OnPreInit(EventArgs e)
{
    if (this.Request.IsAuthenticated)
        this.Response.Redirect("~/Home.aspx");

    base.OnPreInit(e);
}

Answer 2

In the login page add a snippet that checks whether the user is already logged in. If he/she is; then redirect the user to login page.

// In the login page
protected void Page_Load(object sender, EventArgs e)
{
    if (User.Identity.IsAuthenticated)
           Response.Redirect("~/Default.aspx");
}

Answer 3

Don't do that; the only thing you will accomplish is being annoying.

The back button is supposed to go back.